1-Find the Value of Cos(900 - elpha) = ?
A.
- Cos elpha
B.
Cos elpha
C.
- Sin elpha
D.
Sin elpha
2-Choose correct answer if Sec(3 * 3.14/2 - theta) = ? (there ‘3.14’ is pai)
A.
Cosec theta
B.
- Cosec theta
C.
- Sec theta
D.
None
3-Cos3elpha is equal to:
A.
4cos3elpha – 3coselpha
B.
4sin3elpha – 3sinelpha
C.
4coselpha – 3coselpha
D.
a & c
4-Cos(elpha + beta) – cos(elpha - beta) = ?
A.
– 2 sin(elpha)sin(beta)
B.
2 sin(elpha)sin(beta)
C.
2 cos(elpha)cos(beta)
5-Find the value of Cos*3.14/12 = ? (there ‘1/2’ is underhood)
A.
(3)1/2 +1 /2(2)1/2
B.
(3)1/2-1 / 2(2)1/2
C.
A & B
D.
None
6-Range of cosx is ?
A.
[0 , 1]
B.
[-1 , 1]
C.
[-1 , 0]
D.
R
7-The period of 3sin3x is:
A.
2*3.14/3
B.
3.14/2
C.
3.14/3
D.
3.14
8-The period of tanx/3 is:
A.
3*3.14
B.
2*3.14
C.
3.14
D.
None
9-Period of “Secx” is:
A.
4*3.14
B.
3*3.14
C.
2*3.14
D.
3.14
10-The value of “Sin3900” is:
A.
1
B.
½
C.
1/3
D.
None
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